Publications by authors named "Kesong Zhou"
Article Synopsis
- Aging is crucial for improving both strength and ductility in selective laser melted (SLM) precipitation hardening steels, particularly 17-4 PH steel.
- The study examined how different aging temperatures and durations affect the microstructure and mechanical properties of SLM 17-4 PH steel, finding that aging led to larger martensite grains and an increase in the austenite phase.
- While the ultimate tensile strength increased with longer aging times, ductility decreased sharply, highlighting the need for careful heat treatment to optimize performance in high-performance steels.
Selective laser melting (SLM) additive manufacturing of pure tungsten encounters nearly all intractable difficulties of SLM metals fields due to its intrinsic properties. The key factors, including powder characteristics, layer thickness, and laser parameters of SLM high density tungsten are elucidated and discussed in detail. The main parameters were designed from theoretical calculations prior to the SLM process and experimentally optimized.
View Article and Find Full Text PDF